*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font-sans); font-size: var(--text-base); line-height: var(--leading-normal);
  color: var(--color-text-primary); background: var(--color-background); -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }
h1 { font-size: 24px; font-weight: 700; }
h2 { font-size: 16px; font-weight: 700; }
h3 { font-size: 14px; font-weight: 700; }
p { margin: 0; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: var(--font-mono); font-size: 12px; }
.muted { color: var(--color-text-muted); }
.faint { color: var(--color-text-subtle); }
.small { font-size: var(--text-xs); }
.xs { font-size: var(--text-2xs); }
.b { font-weight: 700; }
.num { text-align: end; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ok { color: var(--color-success); } .warn { color: var(--color-warning); } .bad { color: var(--color-danger); } .info { color: var(--color-info); }
.nowrap { white-space: nowrap; }
.grow { flex: 1 1 auto; min-width: 0; }
.row { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.row.end { justify-content: flex-end; }
.row.top { align-items: flex-start; }
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.stack.tight { gap: var(--space-1); }
.stack.loose { gap: var(--space-4); }
.mt-2 { margin-top: var(--space-2); } .mt-3 { margin-top: var(--space-3); } .mt-4 { margin-top: var(--space-4); }
.hidden { display: none !important; }

/* App shell */
.app { display: grid; grid-template-columns: var(--size-sidebar) minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  background: var(--color-nav); color: var(--color-nav-text); position: sticky; top: 0; height: 100vh;
  overflow-y: auto; padding: var(--space-5) var(--space-3); display: flex; flex-direction: column; gap: var(--space-1);
}
.brand { display: flex; gap: var(--space-3); align-items: center; padding: 0 var(--space-2) var(--space-4); }
.brand-mark { width: 38px; height: 38px; border-radius: 9px; background: var(--color-primary); color: #fff; display: grid; place-items: center; font-weight: 700; flex: none; }
.brand-name { color: #fff; font-weight: 700; font-size: 15px; }
.brand-sub { color: var(--color-nav-muted); font-size: 12px; }
.nav-group { color: var(--color-nav-muted); font-size: 11px; font-weight: 700; letter-spacing: .06em; padding: var(--space-4) var(--space-3) var(--space-1); text-transform: uppercase; }
.nav-link {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-2);
  color: var(--color-nav-text); padding: 9px var(--space-3); border-radius: 8px; font-size: var(--text-base); min-height: 40px; transition: background var(--transition-fast);
}
.nav-link:hover { background: var(--color-nav-hover); text-decoration: none; color: #fff; }
.nav-link[aria-current="page"] { background: var(--color-primary); color: #fff; font-weight: 700; }
.nav-link .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-warning-strong); flex: none; }
.nav-foot { margin-top: auto; padding-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-1); }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20; background: var(--color-surface); border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; gap: var(--space-4); padding: 12px var(--space-6); min-height: var(--size-header);
}
.crumb { font-size: 11px; font-weight: 700; letter-spacing: .05em; color: var(--color-text-muted); text-transform: uppercase; }
.page-title { font-size: 22px; font-weight: 700; }
.page-title small { font-size: 14px; color: var(--color-text-muted); font-weight: 500; margin-inline-start: 6px; }
.topbar-actions { margin-inline-start: auto; display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.btn.menu-btn { display: none; }
.content { padding: var(--space-6) var(--space-6) 120px; display: flex; flex-direction: column; gap: var(--space-5); max-width: 1680px; width: 100%; }
.persona { display: flex; gap: var(--space-2); align-items: center; padding: 4px 8px 4px 4px; border-radius: 999px; border: 1px solid transparent; background: none; cursor: pointer; text-align: start; }
.persona:hover { border-color: var(--color-border); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--color-primary-muted); color: var(--color-primary-hover); display: grid; place-items: center; font-weight: 700; font-size: 13px; flex: none; }
.persona-name { font-weight: 700; font-size: 13px; line-height: 1.2; }
.persona-role { font-size: 12px; color: var(--color-text-muted); }
.clock { font-size: 12px; color: var(--color-text-muted); text-align: end; line-height: 1.3; }

.scrim { display: none; }
[hidden] { display: none !important; }

body.guide-open .content { padding-bottom: 320px; }

/* App bar + page header (two levels of hierarchy) */
.topbar { gap: var(--space-3); min-height: 64px; padding: 10px var(--space-6); }
.topbar .search-trigger { flex: 0 1 460px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.page-head .page-title { font-size: var(--text-2xl); font-weight: var(--weight-bold); line-height: var(--leading-tight); overflow-wrap: anywhere; }
.page-actions { display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.icon-btn { padding: 0 12px; gap: 6px; }
.page-head > * { min-width: 0; max-width: 100%; }
.page-actions .badge { white-space: normal; text-align: start; }